2001 Yamaha V Star 1100 Classic "burned bulbs jumping battery" Questions

burned out again. I'm thinking voltage regulator and wondering if the little pigtail connector from my battery tender might have caused a short at the battery. Also, am I cooking anything else besides

...jumping a motorcycle from a car battery make sure the car is not running, it can damage the cycles electrical system. You may have burned out the low beam on the headlight bulb. The bulb should be ...

...burned out, but that didn't work either. before i bought my battery, i was jumping it off with my vehicle battery, could this have messed it up in some way, but not the other lights? i checked the ...